Tool head



C. BOUILLON Jan. 8, 1935.

TOOL HEAD Filed Sept. 25, 1933 2 Sheets-Sheet l lg'his .invention ).relates tto .-itaolsjand tQ01s-whieh,awhif1ei1g0tlimited th remi trpieally .i illustrated asfembod pnoeatinggshaper meremertiuleriyfto fthe fauttiristtool:Submitting n 1eniber.1 ,I x p Inperforming,various.Qperationsswithfmachine ram @of ,conventiona design, it ais necessary 1 to Yprovided;leans;for.;eositienie andpositivel .curing thentpphsupport @forentha'Si-beenu 1 cure the,tool.suppo l nutsithe bolt heads esfpvmittedlto reta en wirwar :beletteringd :a Iixedfmembemwitli `whih'itheto01reliever. ,engages construe: tion@neessitetesitherpesiiioninaef:ih clamping `nutsim:tlief--tsio su novi i emmers `@Diet@nient .er igea desired-implied structureel@ Clamping derieesaareewmmonly used :which e. .grise-awedeeislemeetwhich#in various ways, is actuated between a rotatable tool suenenmrcheasgeefietheiXed member. This Q latter clamping method uhas a tendency to distort the elements, due` to the wedging action, which is an undesirable feature with `due respect for accuracy. i

Accordingly, the object of my present invention is to provide an improved clamping or locking means for a tool head which permits of the tool head being rotated and secured, relative to a xed member, in any desired position and without the disadvantages above enumerated.

the elements and also permits of a simpliiied,1 4:5

To accomplish the above object, I have provided my toolsupport with a trunnion suitably. mounted in a bearing support and having a `portion extending beyond the bearing. This extending portion is provided with a rotatable `element adapted to permita converse longitudinal movement between the rotatable element and the trunnion and to clamp the elements in a desired angular position relative to thebearing or Xed member. Further, my construction permits of a single operating means by which the rotatable member may be actuated to clamp and loosen compact and effective structure.

With the above and other objects in view my invention comprises a novel combination and j Gonnmaiicerporation of;Cmmectieut` f i fifa"sweetest-i933Sesamo-690,146 i, l

i .i acclaim; I (clitoeser rReferring-,fto theidrawingsrj l `:flits-.i1eiseneide@elevationLota'sliaper having-a 'reciprocating rami and :tool head withwmyffloking devicetembodied:therewith r l eFiga-Z is, .Oman enlarged.scalerafplamview .0i the .fram fandttool f head, iin this g view .a portion of thefram; is showngin sect-ion.r i

Fig. 3 is a view corresponding csubstantially to fFng. t2,abutshowsIsla; modiedli-tform of .construcstantiallvMonselice-efe, Fiat,and-viewinsrin direction offarrow same ;1igure. f

f Fia-:misa view.correspondmessubstantiailv to Fig. `4, but shows -et,modiie-d eform ofirotatable membetffendactuatins@lement -1 l @In ,1 this; instance I have illustrated a Vzsliapfer basehohavingpvotallyfsupported.thereimfat 11, agcranktarm 12 A.which isqaetuatedby .thejbull gear; "1,3- driven .by .gaf pinion ,14, `said.,pinion` ,1 4 1 hein, drlvnfthmsh th flisfualhege gears contained in a gear box'l, 'by' the prime mover 16. The crank arm 12 is pivotally connected to the ram 17 by a link 18. f i

The ram 17 has pivotally secured tothe outer end thereof, a tool support 19 which engages the end face 17a of the r'am. The tool support 19 comprises'a slide 20 having a clapper box 2l in which is secured the tool post 22 for the cutting tool 23.

The slide 20 has rotatably mounted therein an adjusting screw 24 and through which the slide is positioned relative to the head. A threaded portion of the screw 24 has rotatably mounted thereon-a bevel pinion 25 which meshes with a pinion 26 which forms a part of the. automatic down feed actuated through a clutch 27 and bevel gears 28, 29, Vin the usual and well known manner. The above described elements and the opera-` tion in a Shaper are shown for illustrative pur-` poses only and are so well known in the art that further detailed description is thought unnecesw sary. j

`I have provided my tool support 191 with `a trunnion 19a which is rotatably supported in a suitable bearing in the ram 17. This trunnion 19a,

is provided with a threaded portion 19h which projects inwardly beyond the bearing. As illustrated at Figs. 1 and 2, Ihave provided a bevel gear 30 with a threaded bore formed therein and adapted to engage the threaded portion 19h of the trunnion. A thrust washer 31 is interposed between the end face of the bevel gear hub and the inner face of the trunnion bearing. The removable wrench 32 is provided with a reduced vthe ram is reciprocated. v

rAs the gear` isrotated in a clockwise direction, by the pinion 33, on the threaded portion 19, the inner face of the tool support 19 is forced l into a tight engagement with the end face 17a of the ram and the Washer is forced into engagement with the inner face of 17h of the bear- I ing, thus locking the tool support 19 ina .desired radial position relative to the fixed supportl or ram. Y

At Fig. 4, I have showna'modied form of rotating element for the threaded portionlQb of the trunnion 19a and which, in this instance, comprises a collar '34 'having' an internally threaded bore adapted vfor threaded engagement with the trunnion. This collar 34 is provided lwith a plurality of radial openings 34a adapted to receivelone end of a handle -35 which is inserted, -through-a-slot 17e, in the ram, into the openings 34a to rotate the collar which will function as the Vgear 30 above described. -fAt Fig. 5, I have `illustrated a wormgear 36 having an internally threadedl bore adapted-for vthreadedengagement with the-trunnion. The worm`37 meshes with the gearand through" the 'rotation of the wormfshaft 38 the gear 36 is actuated to function as the gear -30 toy clamp the vtool/support 19 to the end face 17a. Y'

Y Having thus describedmy invention it Ywill'be evident that may-changes and modifications may be rriade therein by' those skilled in the artv without departing from the spirit and scopefthereof, andalsovmy clamping device may be embodied with tool supports of vvarious constructions,

therefore I do not wish to be limited to the specic details herein disclosed, but, what I claim 1s: 1. A tool holder comprising a relatively fixed member having a bearing with Opposed end faces and a substantially hollow body portion adjacent one of saidend faces, a rotatable member having a trunnion adapted to engage in and extend b'eyond said bearing and into said body portion, a rotatablel member adapted to engage ,said trunnion extension with means for rotating said last member and whereby said second member is fixedly retained relative to said bearing.

2 A 4tool holder comprising a relatively fixed member having a bearing and a substantially hollowv bodyportion adjacent one of said end faces with opposed end faces; a flange member adapted to engage one end face of said bearing; a trunnion integral with said ange member and adapted to engage in said bearing, said trunnion havingVV a threaded portion extending beyond the opposed end face of said bearing and into said body portion; a rotatable member adapted to engagesaid threaded portion whereby rotation of said last member will retain said flange member in a 'fixed' position relative to said bearing.

'3. A tool-holder comprising in combination, `a substantially flanged head, Va slide adjustably secured to saidhead, a clapper box adjustably secured to said slide and having a cutting tool supported therein, a trunnion integral with said head'and havinga threaded end portion, a bearing for"saidtrunnion said bearing having opposed end faces with a substantially hollow body portionadjacent-one of said end faces, a rotatable member adapted to engage said threaded end portionwithin said body portion with means for 'rotatingv` said member whereby said head is retained in'a fixed angular'position relative to said bearing. v CONSTANT BOUILLON. 

